math

posted by alex

Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell five cars; nineteen generally sell six cars; twelve generally sell seven cars; nine generally sell eight cars; eleven generally sell nine cars. Calculate the following. (Round your answer to two decimal places.)
sample mean = x
x = cars

  1. Arora

    Step 1: Make a frequency distribution table. I will refer to each of the values (number of cars) as x(i) and each of the frequencies as f(i)

    Step 2: Finding the mean:

    Mean = Σ( x(i)*f(i) ) / (Total number of salespersons)

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Word Problem Maximizing A Bonus

    Pauline Wong spends 4 hours selling a used car and 6 hours selling a new car. She works no more than 40 hours per week. In order to receive a bonus, she must sell at least one used car and four new cars each week. In that case, she …
  2. Elementary Statistics help

    It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the …
  3. STATISTICS

    It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the …
  4. 6th grade math

    a toy company manufactures miniature cars. They sell 15 miniature sports cars in a box. They sell 12 miniature trucks in a box. Mrs. Murphy wants to buy an equal number of sports cars and trucks. What is the least number of miniature …
  5. Math

    Based on past studies, a car manufacturer has found that 83% of new car buyers will sell their new car within the next four years. If 100 new car buyers are randomly selected, what is the probability that at least 90 will sell their …
  6. math

    Jims records the number of cars his team sells in each month for a year. 4,6,8,6,7,3,5,3,9,8,7,9 What percent of the months does his team sell more than 6 cars?
  7. statistics

    In this question, use Excel functions rather than Normal distribution tables. The number of new cars sold by "Ma's New Car Factory" in a financial year can be approximated by a normal distribution with a mean of 125,000 cars and a …
  8. Math

    A toy company manufactures miniature cars. They sell miniature sports cars in a box. They sell 12 miniature trucks in a box. Mrs. Murphy wants to buy an equal number of sports cars and trucks for the Boys and Girls Club. What is the …
  9. math

    ervin sells vintage cars. every three months, he manages to sell 13 cars. assuming he sells cars at a constant rate, what is the slope of the line that represents this relationship if time in months is along the x-axis and the number …
  10. tourism and hospitality

    Which describes the prices of products during the introduction stage of the life cycle?

More Similar Questions